Liquid filled Oil pressure gauge

T

timtune

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I need a replacement oil pressure gauge for my sohc project. Using an oil gallery plug adapter they're mounted right on the engine - old's cool fashion.
The bike guys sell them for about $70. Amazon has some for $20 and even one at $6.

Where would you recommend I go for these? and what's a reasonable price?

Thanks.
 
IF you want to mount it right on a oil gallery, you want a decent gauge with damping (oil filled).
Oil pressure close to the pump JUMPS around A LOT! Having the gauge at the end of a long line (typical setup) dampens this.
I put a gauge right on top of the oil pump on a Duc motor and it bounced around so much I couldn't read it... because I NEEDED to know what it was doing and I ended up with a 2 1/2" oil filled pressure gauge mounted on the side of the motor. it looked DUMB. Now it has a steel braided line to a gauge on the dash.
Stewart Warner makes nice stuff, about $125
... AFIK the gauge is going to be imperial thread (1/8" pipe thread) and your Honda will be metric (M10 x 1.0)... so at some point ....
 
If you get one of the cheaper options definitely checking for accuracy at a few different pressures in the range prior to installing. I'm not sure of temp sensitivity of the gauges. Again, cheaper ones would have me nervous until proven but that is harder to test. Bad data is worse than no data.
 
GreyGhost said:
If you get one of the cheaper options definitely checking for accuracy at a few different pressures in the range prior to installing. I'm not sure of temp sensitivity of the gauges. Again, cheaper ones would have me nervous until proven but that is harder to test. Bad data is worse than no data.
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A leaky bourdon tube is worse than no gage you could lose all the oil before you realize. You don't need an expensive one but you need a good one Winters are a good name brand or wika.

Sent using a thumb maybe 2
 
Should have mentioned I have the adapter. AND I had a gauge mounted before I parked this bike under a bench for 20 years.
Unfortunately I decided to buff the case of the one I had. It slipped from my fingers and when it hit the floor the needle jumped the pin.
 
timtune said:
Should have mentioned I have the adapter. AND I had a gauge mounted before I parked this bike under a bench for 20 years.
Unfortunately I decided to buff the case of the one I had. It slipped from my fingers and when it hit the floor the needle jumped the pin.
Click to expand...
You cant press the needle back on? I've done it with air filled but I will admit I have never taken an oil-filled apart.
 
The needle jumped the "stop" pin at the other end. It is was a cheap non filled unit. I wrecked it getting it apart.
 
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